NACE 10B189-2014 PDF Download

NACE 10B189-2014 is a standard that focuses on the mitigation of stray current in direct current (DC) operated rail transit systems. Stray current refers to the leakage of current in the rail return path of traction systems, which can have detrimental effects on both safety and utility structures.

The standard recognizes that underground metallic structures, such as piping, can be affected by stray current when the earth acts as a parallel path to the rails in the DC rail transit system. This can result in corrosion of these structures.

This standard aims to provide guidance to transit and utility engineers on mitigating stray current in rail transit systems. It is important to address this issue to minimize safety hazards and prevent damage to utility structures and the community as a whole.

While the standard does not provide detailed instructions, it serves as a resource for engineers to understand the concept of rail transit stray current and implement appropriate mitigation measures.